| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 32 |
6.8%
|
| 2 | Every few weeks | 61 |
12.9%
|
| 3 | Every few months | 146 |
30.8%
|
| 4 | Not at all | 235 |
49.6%
|
| Sysmiss | 4 |